//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $Workfile:     $
// $Date:         $
//
//-----------------------------------------------------------------------------
// $Log: $
//
// $NoKeywords: $
//=============================================================================//
#if !defined(IVIEWPORT_H)
#define IVIEWPORT_H
#ifdef _WIN32
#pragma once
#endif

#include <vgui/VGUI.h>

#include "viewport_panel_names.h"

class KeyValues;

abstract_class IViewPortPanel {
   public:
    virtual ~IViewPortPanel(){};

    virtual const char *GetName(void) = 0;       // return identifer name
    virtual void SetData(KeyValues * data) = 0;  // set ViewPortPanel data
    virtual void Reset(void) = 0;  // clears internal state, deactivates it
    virtual void Update(
        void) = 0;  // updates all (size, position, content, etc)
    virtual bool NeedsUpdate(
        void) = 0;  // query panel if content needs to be updated
    virtual bool HasInputElements(
        void) = 0;  // true if panel contains elments which accepts input

    virtual void ShowPanel(bool state) = 0;  // activate VGUI Frame

    // VGUI functions:
    virtual vgui::VPANEL GetVPanel(void) = 0;  // returns VGUI panel handle
    virtual bool IsVisible() = 0;              // true if panel is visible
    virtual void SetParent(vgui::VPANEL parent) = 0;
};

abstract_class IViewPort {
   public:
    virtual void UpdateAllPanels(void) = 0;
    virtual void ShowPanel(const char *pName, bool state) = 0;
    virtual void ShowPanel(IViewPortPanel * pPanel, bool state) = 0;
    virtual void ShowBackGround(bool bShow) = 0;
    virtual IViewPortPanel *FindPanelByName(const char *szPanelName) = 0;
    virtual IViewPortPanel *GetActivePanel(void) = 0;
    virtual void PostMessageToPanel(const char *pName,
                                    KeyValues *pKeyValues) = 0;
};

extern IViewPort *gViewPortInterface;

#endif  // IVIEWPORT_H